FBI Director James Comey testifies before the House Intelligence Committee hearing into alleged Russian meddling in the 2016 U.S. election on Capitol Hill in Washington, U.S., March 20, 2017. REUTERS/Joshua Roberts

FBI Director James Comey testifies before the House Intelligence Committee hearing into alleged Russian meddling in the 2016 U.S. election on Capitol Hill in Washington, U.S., March 20, 2017. REUTERS/Joshua Roberts